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ppmtopj - convert a portable pixmap to an HP PaintJet file
ppmtopj
[-gamma val] [-xpos val] [-ypos val] [-back dark|lite] [-rle] [-center] [-render
none|snap|bw|dither|diffuse|monodither|monodiffuse|clusterdither|monoclusterdither]
[ppmfile]
Reads a portable pixmap as input and converts it into
a format suitable to be printed by an HP PaintJet printer.
For best results,
the input file should be in 8-color RGB form; i.e. it should have only the
8 binary combinations of full-on and full-off primaries. You could get this
by sending the input file through ppmquant -map with a map file such as:
P3
8 1
255
0 0 0 255 0 0 0 255 0 0 0 255
255 255 0 255 0 255 0 255 255 255 255 255
Or else you could use use ppmdither -red 2 -green 2 -blue 2.
- -rle
- Run
length encode the image. (This can result in larger images)
- -back
- Enhance
the foreground by indicating if the background is light or dark compated
to the foreground.
- -render alg
- Use an internal rendering algorithm (default
dither).
- -gamma int
- Gamma correct the image using the integet parameter as
a gamma (default 0).
- -center
- Center the image to an 8.5 by 11 page
- -xpos pos
- Move by pos pixels in the x direction.
- -ypos pos
- Move by pos pixels in the
y direction.
HP PaintJet XL Color Graphics Printer User's Guide
pnmdepth(1)
, ppmquant(1)
, ppmdither(1)
, ppm(5)
Most of the
options have not been tested because of the price of the paper.
Copyright
(C) 1991 by Christos Zoulas.
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